cannula


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cannula

 [kan´u-lah]
a tube for insertion into a vessel, duct, or cavity. During insertion its lumen is usually occupied by a trocar; following placement, the trocar is removed and the cannula remains patent as a channel for the flow of fluids.
nasal cannula one that fits into the nostrils for delivery of oxygen therapy. Called also nasal prongs.

can·nu·la

(kan'yū-lă),
A tube that can be inserted into a cavity, usually by means of a trocar filling its lumen; after insertion of the cannula, the trocar is withdrawn and the cannula remains as a channel for the transport of fluid or passage of instruments.
[L. dim. of canna, reed]

cannula

/can·nu·la/ (kan´u-lah) a tube for insertion into a vessel, duct, or cavity; during insertion its lumen is usually occupied by a trocar.

cannula

also

canula

(kăn′yə-lə)
n. pl. cannu·las or cannu·lae (-lē′)
A flexible tube, usually containing a trocar at one end, that is inserted into a bodily cavity, duct, or vessel to drain fluid or administer a substance such as a medication.

cannula

[kan′yələ] pl. cannulas, cannulae
Etymology: L, small tube
a flexible tube that may be inserted into a duct or cavity to deliver medication or drain fluid. It may be guided by a sharp, pointed instrument (trocar). A body fluid may be passed through the cannula to the outside. See also nasal cannula. cannular, cannulate, adj.

cannula

A tube inserted into a duct, cavity or other space; its lumen is maintained closed by a trocar during insertion.

cannula

Surgery A tube inserted into a duct, cavity or other space; during insertion, its lumen is occluded by a trocar. See Endoscopy, Nasal cannula, QuickDrawvenous cannula, Trocar.

can·nu·la

(kan'yū-lă)
A tube that can be inserted into a cavity or vein, usually by means of a trocar filling its lumen; after insertion of the cannula, the trocar is withdrawn and the cannula remains as a channel for the transport of fluid. Intravenous cannulas should be changed regularly to prevent thrombophlebitis.
[L. dim. of canna, reed]

cannula

(kan'u-la) [L., a small reed]
Enlarge picture
NEEDLELESS CANNULAE USED TO CONNECT AN ADDITIVE TO PRIMARY INTRAVENOUS INFUSIONS
A tube or sheath that encloses a trocar. After the device is inserted into a blood vessel, body cavity, duct, or hollow organ, withdrawal of the trocar lets fluid drain (so that it can be collected or sampled) or escape. See: illustration

Bellocq's cannula

See: Bellocq's cannula
Enlarge picture
NASAL CANNULA FOR OXYGEN DELIVERY.

nasal cannula

Tubing used to deliver oxygen at levels from 1 to 6 L/min. The nasal prongs of the cannula extend approx. 1 cm into each naris and are connected to a common tube, which is then connected to the oxygen source. It is used to treat conditions in which a slightly enriched oxygen content is needed, such as emphysema. The exact percentage of oxygen delivered to the patient varies with respiratory rate and other factors.
illustrationillustration

cannula

A hollow surgical tube, into which is inserted a close fitting, sharp-pointed inner stiffener called a trocar. The combination can easily be pushed through the skin or the lining of a blood vessel or other tissue. When in position, the trocar is pulled backwards out of the cannula, leaving the latter in place. Fluids or other materials may then be passed.

Cannula

A tube inserted into a cavity to serve as a channel for the transport of fluid.

can·nu·la

(kan'yū-lă)
Tube that can be inserted into a cavity, usually by means of a trocar filling its lumen.
[L. dim. of canna, reed]

cannula (kan´yələ),

n a tube for insertion into the body; its caliber is usually occupied by a trocar during the act of insertion.
cannula, nasal,
n a small, half-moon shaped plastic tube, the ends of which fit into the nostrils of an individual.

cannula

a tube for insertion into a duct or cavity; during insertion its lumen may be occupied by a trocar.

nasal cannula
a means of delivering oxygen to dogs or cats over a long period.
References in periodicals archive ?
In the case described, ongoing medio-lateral navigation of the cannula tip 'around the corner' of the medial turn of the radial artery was required once initial flashback was achieved.
This made it possible for us to make a two-layer cannula with significant added functionality without an increase of outer diameter compared with the generic cannulas surgeons previously used,” said Ted Kucklick, CEO and designer of the patented EntreVu EX cannula.
Staff have implemented a number of strategies to reduce the risk of infections, including introducing the insertion sticker and the peripheral venous cannula (PVC) insertion pack containing the cannula and an alcohol-based liquid which prepares the patient's skin to reduce infection.
The results, although supported in other studies on classical buttonhole technique, include the use of sharp cannulas.
All 3 of the patients recovered following replacement of the LVAD cannula, David A.
Histologic analysis confirmed that cannula placement was appropriately located in dorsal striatum for all rats.
This technique uses the same basic preparation as tumescent and super-wet liposuction, but employs a different type of cannula that emits ultrasound waves at its tip to liquefy the fat, and then suctions it out of the body.
In a Study of 900 women who underwent diagnostic or operative laparoscopy, all patients had direct insertion of a 5-mm cannula without using the Veress needle.
in Tennessee demonstrated his innovative vibrating cannula by plunging it into a 10-pound ham.
The Softech Plus line of adult, pediatric, infant and neonatal oxygen cannulas feature a soft material in both the cannula and the lariat tubing, which runs from the nasal prongs up to, over and around the ear.
Company builds state-of-the-art 60,000-square-foot manufacturing facility on its 10 acre campus in Dexter, Michigan with the goal of bringing back the Sarns(TM) Soft-Flow Arterial Cannula during the first half of 2016